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Finding the Fourth Proportional to 253,653.68, 350,041.32 and 143,260.24

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Solution

The fourth proportional to 253,653.68, 350,041.32 and 143,260.24 is: 197,698.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,653.68 : 350,041.32 = 143,260.24 : x
  2. Step 2: Convert to fraction form
    253,653.68/350,041.32 = 143,260.24/x
  3. Step 3: Cross multiply
    253,653.68x = 350,041.32 × 143,260.24
  4. Step 4: Simplify right side
    253,653.68x = 50,147,002,638.01
  5. Step 5: Solve for x
    x = 50,147,002,638.01/253,653.68
  6. Step 6: Final answer
    x = 197,698.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.